Results for: Noise

Answer .
White noise is random sound that contains an equal amount of all the frequency components across the spectrum one is testing. It sounds sorta like the hiss one hea…rs when a television is tuned to a blank channel (if the television doesn't automatically mute the sound when no signal is present, however). If one has white noise and examines the signal level of, say, the 55 cycle per second signal component, it will be the same as, say, the 927 cycle per second signal component, or the 2651 cycle per second signal component. Check this out:.
http://en.wikipedia.org/wiki/White_noise (MORE)

When something makes a noise, it sends vibrations, or sound waves, through the air. The human eardrum is a stretched membrane, like the skin of a drum. When the sound waves… hit your eardrum, it vibrates and the brain interprets these vibrations as sound. Actually, as most things having to do with the human body, it is a little more complicated than that. After the vibrations hit your eardrum, a chain reaction is set off. Your eardrum, which is smaller and thinner than the nail on your pinky finger, sends the vibrations to the three smallest bones in your body. First the hammer, then the anvil, and finally, the stirrup. The stirrup passes those vibrations along a coiled tub in the inner ear called the cochlea. Inside the cochlea there are thousands of hair-like nerve endings, cilia. When the Cochlea vibrates, the cilia move. Your brain is sent these messages (translated from vibrations by the cilia) through the auditory nerve. Your brain then translates all that and tells you what you are hearing. Neurologists don't yet fully understand how we process raw sound data once it enters the cerebral cortex in the brain. (MORE)

The simplest definition is any sound that is unwanted. 'Noise' whenreferring to any waveform or signal, is interference from otheroutside sources that contaminates the origina…l signal or waveform.As an example, the 'hiss' often heard when a radio is not tuned into a station correctly can be thought of as noise. Similarly ascratch on an old style LP, a hum from a CD or even the drone froman amplifier can all be classed as noise. (MORE)

This additive noise come from varies factors , one of the main factor is Temperature.Why this noise said to additive in the sense this noise only adding the signal not integra…ting the noise, so it is a cumulative processes, not integrating one. (MORE)

Electronic devices often emit a high pitched low volume squeel. This is often the result of transformers or capacitors as current passes through them. Alternatively, this may… be signal interferrence in signal waves. (MORE)

noise filters are used in electronics and electric curcuts to reduce the the noise level which the electric switching generats sometimes the are single phase and there are thr…ee phase also the most used noise filters are ssr emc filters (MORE)

The phrase, "A Noisy Noise Annoys An Oyster" should be credited to Dr Seuss, the famous expert on rhymes, who wrote the first Gerald McBoing Boing cartoon in the 50s. In the e…pisode entitled "How Now Boing Boing" the phrase, "A noisy noise annoys an oyster" is written on a wall. The wordplay is typical Seuss: A noise-y noise a-noise a-noise-ster! Not so. My dad used to enjoy teaching this to me in the mid '40s when I was about 10 years old. I don't know the origin, but it antedates Seuss. (MORE)